Improvement in bolt-works for safe-doors



BoItWorks foi* vSafe-Doors.

NOL 42,5500i Y Patented August26,873.

l ff @w/LZ l y gw@ HIRAM B. TRIPP, OF SOUTH BOSTON, MASSACHUSETTS.

IMPROVEMENT IN BOLT-WORKS FOR SAFE-DOORS.

Specification forming part of Letters 4Patent No. 142,300, dated August 26, 1873; application filed July 12, 1873. Y

To all whom it may concern:

Be it known that I, HIRAM B. TRIPP, of South Boston, in the county of Suffolk and State of Massachusetts, have invented an Improved Connection between the Lookin g Mechanism and the Bolts of a Safe-Door, of which thefollowing is a specification: l

This invention relates more particularly' to the connection between the bolts of a safedoor and the locking mechanism when two separate and distinct locking mechanisms are employed', and its main object is to secure such a connection as will allow the bolts to be thrown under the proper adjustment of either one or both of the locking mechanisms. To

this end the invention consists of a certain combination and arrangement of parts, which will be fully hereinafter specified, and which do not require preliminary explanation.

In the accompanyingplates of drawings this invention is illustrated.

In Plate 1, Figure l is a view ofthe inside lof a safe-door, showing two locks and the boltconnecting mechanism locked against movement; Fig. 2, a section in plane of line a" Fig. l, Fig. 3, a similar View to Fig. 1, but with one lock unlocked and the door unbolted. In Plate 2, Fig. 4, a similar view to Fig. 3 of Plate l, but with both locks unlocked and the door unbolted; Fig; 5, a section in plane of line y y, Fig. 4, Plate 2. t

A in the drawings represen ts the inside face of a safe-door, B O, the bolts, two in number, connected. together by a bar, D, and arran ged, as ordinarily, to move together in parallel lines through the fixed parallel guidebars E of the door; F, the handle for throwing the bolts O. This handle F is connected to the bolt-bar D, as ordinarily, the connection being shown at Gr, Figs. 1 and 4. H H2 two cases, each containing a locking mechanism. The locking mechanism may be of any -of the well-known forms-as, for instance, a

Pillard or a Sargent lock, and either both alike or one different from the other. These lockcases H H2 are secured to the inside of a safedoor, B, one above and parallel to the other, leaving a space between the two. I and I2, the bolts of locking mechanisms. The bolt I is of lock H, and the bolt I2 of lock H2. The

bolts I and I2, when locked, project from the lock-case toward the carrier-bar D for doorbolts O, as shown in Fig. 1, Plate 1, and when unlocked are drawn into their respective look-cases, as' atv J, Figs; 3 and 4. K, the mechanism which, under this invention, makes the connection between the two locking meclranisms, and the carrier-bar D for the doorbolts C. This mechanismK consists'of abar, a, that, at one end, is hung on a pivot, b, of the carrier-bar D for bolts O, and at the other is hung on an independent and free pivot, c. The pivot c carries one' end of two similar linkbars, d d2, which are hung-the one,d, to a pivot, f, of a lever-catch, g, and the other, d2, to a pivot, f2, of a similar lever-catch, g2. Each lever-catch g g2 is hung to a separate xed fulcrum, h h2, of the safe-door B, these fulcrums h h2 being located for the hook l of the one lever g to interlock with the bolt I of lock H, and the hook l2 of the lever g2 to interlock with the bolt I2 of lock H2, when the locks are locked and the door bolted, all as shown more particularly in Fig. l, Plate l. m m2, stoppins-the one, m, for lever-catch g, and the other, m2, 'for lever-catch g2. These stop-pins 'm m2 are secured to the door, and they limit the swing of the lever-catches g g2 when bolt` ing the door.

If one lock be unlocked, then, under a movement of the door-bolts to unbolt the door, the mechanism K adjusts itself wholly within the portion lying directly between the carrierbar D and the unlocked lock, see Fig. 3, Plate l; but if both locks be unlocked, then, under a movement of the door-bolts to unbolt the door, the mechanism K adjusts itselfl equally within both portions between the carrier-bar D and the locks. (See Fig. 4, Plate l.)

o, a hole in bolt-bar D and connection-bar a; and p, a screw or pin, suitable for the hole o, and which, if set therein, fastens the bar to the bolt-bar D, securing the connection K against movement, unless both locks are unlocked.

The mechanism K permits the use of either the one or the other, or both of the two locks, at the will of the operator-an obvious advantage.

The lever-catches g g2, obviously, are. to be stantially as herein described, for the purpose specified.

The above specification of my invention signed by me this 21st day of June A. D. 187 3.

H. B. TRIPP.

Witnesses:

EDWIN W. BROWN, ALBERT W. BROWN. 

